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cooperess
 Post subject: Crankshaft Plate
PostPosted: Sun May 14, 2023 2:06 pm 
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Location: Brandy Hill, NSW
Attachment:
Dscf1909.jpg


Any reason for this?


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timmy201
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 2:13 pm 
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Location: Wollongong, NSW
Yes it flicks oil onto the timing chain

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cooperess
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 2:17 pm 
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I am looking at the marks on the plate.
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cooperess
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 2:19 pm 
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BTW what is the part number and is this the front or back.
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drmini in aust
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 2:37 pm 
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It's not a Cooper S one, those are almost flat. And marked F for front.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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cooperess
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 5:05 pm 
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drmini in aust wrote:
It's not a Cooper S one, those are almost flat. And marked F for front.

So are you saying there are 2 types of oil slinger, one for Cooper S and one for the others?
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timmy201
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 5:07 pm 
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Location: Wollongong, NSW
The marks on the plate can come from a duplex chain

One of the part numbers is 12A1148 and they are often marked with an “F” for front
http://www.minispares.com/product/Class ... 0catalogue


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eightfifty
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 5:37 pm 
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Readers, there are two versions of this thrower. 12A1148 and AYA139, with different offsets. 12A1148 is the shallower one.
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drmini in aust
 Post subject: Re: Crankshaft Plate
PostPosted: Sun May 14, 2023 8:48 pm 
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The shallow one pictured above is for a duplex chain. As used on Cooper S and early non S 1275.
Or fit to any A series fitted with a duplex chain.
The deeper one was used on everything else. Single row chain.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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Mick
 Post subject: Re: Crankshaft Plate
PostPosted: Sun Jul 30, 2023 7:11 pm 
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Location: Under the bonnet son!
These have become a little hard to find locally at the moment. A roll-on effect of the loss of small part maker industry to COVID. I thought I found one in QLD, but unfortunately it's for a larger crankshaft tail diameter (although its labeled A-series? Maybe its B series?).

i currently have one coming from NZ. Here's hoping it's the right (shallow dish) one.

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cooperess
 Post subject: Re: Crankshaft Plate
PostPosted: Sun Jul 30, 2023 8:53 pm 
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I have new oil slinger if you need one.
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drmini in aust
 Post subject: Re: Crankshaft Plate
PostPosted: Sun Jul 30, 2023 9:28 pm 
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Timing chain runs in an oil bath.
The plate slings oil away from the timing cover oil seal. I don't think they do much for the seal, some race engine builders don't use them with duplex chains as aftermarket ones are too soft and flatten when pulley is torqued up.
I've built motors without them. Including my son's 1300. Doesn't leak.
My 1360 has a Triger belt drive kit, there's no way to fit one.
Doesn't leak either.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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Mick
 Post subject: Re: Crankshaft Plate
PostPosted: Mon Jul 31, 2023 2:09 pm 
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Location: Under the bonnet son!
cooperess wrote:
I have new oil slinger if you need one.


Thanks, I have one coming now, but I think we might have used the same supplier for the first one (that didn't fit)? Was yours the right inside diameter size?

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cooperess
 Post subject: Re: Crankshaft Plate
PostPosted: Mon Jul 31, 2023 2:47 pm 
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Location: Brandy Hill, NSW
Mick wrote:
cooperess wrote:
I have new oil slinger if you need one.


Thanks, I have one coming now, but I think we might have used the same supplier for the first one (that didn't fit)? Was yours the right inside diameter size?
Pretty sure I was supplied with the wrong one it being a larger internal diameter.
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Mick
 Post subject: Re: Crankshaft Plate
PostPosted: Mon Jul 31, 2023 3:05 pm 
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Location: Under the bonnet son!
Yeah. I spoke to him about it. He figured it was A-series (inline) but I think it might be perhaps something else.

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